Thread Repair Tools

Solid Insert Repair Kits

A solid insert can have one thread inside and another outside. Use the original fastener thread to start the search, then check the complete kit model and the supported application.

What to check before ordering

Compare the insert family, supplied length and the contents of the specific kit. The E-Z LOK EZ-450-6 kit identifies both the repaired M6×1.0 thread and the M10×1.5 exterior thread. Time-Sert lists a separate set of refill lengths by model, so check which length is actually supplied before comparing kits.

Separate inside and outside threads

The original bolt engages the inside thread. The solid insert’s outside thread determines the mating hole requirements. Read both before comparing two kits with the same repaired size.

Standard and oversize applications

Check whether the equipment calls for a standard, thin-wall or oversize system. An existing repair can change which manufacturer procedure applies.

Compare documented examples

Manufacturer references

Frequently asked questions

Which of the two listed thread sizes refers to the original fastener?

Look for the repaired or internal thread field. The exterior thread describes the outside of the solid insert and belongs in a separate check.

Do all optional refill lengths come with a starter kit?

Check the exact kit contents. An index may list several compatible refill lengths while supplying only one in the case.

Buying guides